Bump symfony/yaml from 7.4.6 to 8.0.13

[dependabot]

Bumps symfony/yaml from 7.4.6 to 8.0.13.

Release notes

Sourced from symfony/yaml's releases.

v8.0.13

Changelog (symfony/yaml@v8.0.12...v8.0.13)

• bug #64316 Allow trailing newlines after the end-of-document marker (@​nicolas-grekas)

v8.0.12

Changelog (symfony/yaml@v8.0.11...v8.0.12)

• security #cve-2026-45305 Harden the Parser::cleanup() regexes against catastrophic backtracking (@​nicolas-grekas)
• security #cve-2026-45304 Bound collection-alias resolution in the parser (@​nicolas-grekas)
• security #cve-2026-45133 Bound recursion depth in the parser (@​nicolas-grekas)

v8.0.11

Changelog (symfony/yaml@v8.0.10...v8.0.11)

• bug #64196 Reject non-stringables when using "!!binary" (@​nicolas-grekas)

v8.0.10

Changelog (symfony/yaml@v8.0.6...v8.0.10)

• bug #64119 fix flow collection drops &anchor and !!str &anchor items (@​ousamabenyounes)

v8.0.8

Changelog (symfony/yaml@v8.0.7...v8.0.8)

• no significant changes

v8.0.6

Changelog (symfony/yaml@v8.0.5...v8.0.6)

• bug #57292 Fix parsing nested mappings in sequences (@​HypeMC)

v8.0.1

Changelog (symfony/yaml@v8.0.0...v8.0.1)

• bug symfony/symfony#62612 [Yaml] Fix regression handling blank lines in unquoted scalars (@​yoeunes)

v8.0.0-RC2

Changelog (symfony/yaml@v8.0.0-RC1...v8.0.0-RC2)

• bug symfony/symfony#62409 [Yaml] Align unquoted multiline scalar parsing with spec for comments (@​yoeunes)

v8.0.0-BETA1

Changelog (symfony/yaml@v7.3.4...v8.0.0-BETA1)

• feature symfony/symfony#61423 [Mime] Deprecate implementing __sleep/wakeup() on AbstractPart implementations (@​nicolas-grekas)
• feature symfony/symfony#60851 [Yaml] raise a parse error for duplicate keys (@​xabbuh)
• feature symfony/symfony#60776 [Console][FrameworkBundle] Remove deprecated Application::add() methods (@​HypeMC)
• feature symfony/symfony#60394 [Console][FrameworkBundle] Simplify using invokable commands when the component is used standalone (@​HypeMC)
• feature symfony/symfony#60639 Bump Symfony 8 to PHP >= 8.4 (@​nicolas-grekas)

... (truncated)

Changelog

Sourced from symfony/yaml's changelog.

CHANGELOG

8.0

• Remove support for parsing duplicate mapping keys whose value is null

7.3

• Add compact nested mapping support by using the Yaml::DUMP_COMPACT_NESTED_MAPPING flag
• Add the Yaml::DUMP_FORCE_DOUBLE_QUOTES_ON_VALUES flag to enforce double quotes around string values

7.2

• Deprecate parsing duplicate mapping keys whose value is null
• Add support for dumping null as an empty value by using the Yaml::DUMP_NULL_AS_EMPTY flag

7.1

• Add support for getting all the enum cases with !php/enum Foo

7.0

• Remove the !php/const: tag, use !php/const instead (without the colon)

6.3

• Add support to dump int keys as strings by using the Yaml::DUMP_NUMERIC_KEY_AS_STRING flag

6.2

• Add support for !php/enum and !php/enum *->value
• Deprecate the !php/const: tag in key which will be replaced by the !php/const tag (without the colon) since 3.4

6.1

• In cases where it will likely improve readability, strings containing single quotes will be double-quoted

5.4

• Add a $maxNestingLevel argument to Parser::__construct(), Yaml::parse() and Yaml::parseFile() to bound recursion depth (default 128)

... (truncated)

Commits

• a1cdf99 Merge branch '7.4' into 8.0
• a7ec3b1 Merge branch '6.4' into 7.4
• e8fdf34 CS fix
• dcfacbd Merge branch '7.4' into 8.0
• 4b5658c Merge branch '6.4' into 7.4
• 69b7344 Merge branch '5.4' into 6.4
• ae0bbb4 [Yaml] Allow trailing newlines after the end-of-document marker
• 2a36f4b Merge branch '7.4' into 8.0
• 8b6952b Merge branch '6.4' into 7.4
• 68dcd1f Merge branch '5.4' into 6.4
• Additional commits viewable in compare view

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Note

Medium Risk
Major Symfony YAML upgrade with PHP 8.4 requirement and stricter parsing may break CI/runtime if the environment or YAML edge cases relied on 7.x behavior; security fixes reduce parser DoS risk.

Overview
Updates composer.lock to pull symfony/yaml from 7.4.6 to 8.0.13 (Symfony 8), along with transitive bumps to symfony/deprecation-contracts (v3.7.0) and symfony/polyfill-ctype (v1.37.0).

The new symfony/yaml release raises the package’s PHP requirement to ≥ 8.4 and tightens the optional symfony/console integration constraint. Functionally, the jump includes parser security hardening (bounded recursion, safer cleanup regexes, collection-alias limits) and stricter parsing (e.g. duplicate mapping keys with null values are no longer accepted in 8.0).

No application source files change—only the locked dependency graph.

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PHP 8.4 requirement breaks CI running PHP 8.3

High Severity

The symfony/yaml bump from v7.4.6 to v8.0.13 introduces a "php": ">=8.4" requirement, but both CI workflows (.github/workflows/php.yml and .github/workflows/release-version.yml) use php-version: 8.3. The quality workflow runs composer install which installs dev dependencies including this package, and Composer will refuse to install because PHP 8.3 doesn't satisfy the >=8.4 constraint — breaking CI entirely.

Additional Locations (1)

• composer.lock#L7741-L7742

 

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